Benzidine hydrochloride
- CAS Number
- 531-85-1
- HSN Code
- 29215920
- Molecular Formula
- C12H12N2.2HCl
- Catalogue Number
- AL0612
- Purity
- ≥99%
- Molecular Weight
- 257.16 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Benzidine dihydrochloride is a white crystalline powder.
Also known as Benzidine dihydrochloride.
- Catalogue No.
- AL0612
- CAS Number
- 531-85-1
- Molecular Formula
- C12H12N2.2HCl
- Molecular Weight
- 257.16 g/mol
- HSN Code
- 29215920
- Grade
- AR grade
- Product Form
- Substance
Melting point: greater than 572 °F; Solubility: 1 to 5 mg/mL at 74.3 °F.
- Appearance
- Benzidine dihydrochloride is a white crystalline powder
- Shelf Life
- -
- Packaging
- Available in: 25 gm glass bottle, 100 gm glass bottle
- Storage
- Store in a cool, dry place, away from light and moisture.
1.1 — Product identifier
- Chemical Name
- Benzidine hydrochloride
- Catalogue No.
- AL0612
- Product form
- Substance
- CAS Number
- 531-85-1
- EC Number
- 208-519-6
- Grade
- AR grade
- EC Index Number
- 612-059-00-0
- Chemical Formula
- C12H12N2.2HCl
- HSN Code
- 29215920
- Synonyms
- Benzidine dihydrochloride
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Dye intermediate, analytical reagent
- Uses advised against
- Not specified
1.3 — Details of the supplier of the safety data sheet
- Company identification
- Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.
1.4 — Emergency Contact Details
- Phone / e-Mail
- Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in
2.1 — Classification of the substance or mixture
- Classification according to Regulation (EC) No 1272/2008
- H302; H350; H400; H410
- Classification source
- CLP Annex VI via PubChem CID 10754
2.2 — Label elements
- Hazard pictograms
- Irritant, Health Hazard, Environmental Hazard
- Signal word
- Danger
- Hazard statements
- H302: Harmful if swallowed; H350: May cause cancer; H400: Very toxic to aquatic life; H410: Very toxic to aquatic life with long lasting effects
- Precautionary statements
- P203, P264, P270, P273, P280, P301+P317, P318, P330, P391, P405, P501
2.3 — Other hazards
- Other hazards
- Carcinogenic, potential reproductive hazard
3.1 — Substance
- Name
- Benzidine hydrochloride
- CAS No.
- 531-85-1
4.1 — Description of first aid measures
- First-aid measures after inhalation
- Move to fresh air. If symptoms persist, seek medical attention.
- First-aid measures after skin contact
- IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water.
- First-aid measures after eye contact
- First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center.
- First-aid measures after ingestion
- Do not induce vomiting. Rinse mouth and seek medical attention immediately.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Cough, shortness of breath, skin irritation, eye irritation.
4.3 — Indication of any immediate medical attention and special treatment needed
- General information
- Treat symptomatically. Show this safety data sheet to the treating physician.
5.1 — Extinguishing media
- Suitable extinguishing media
- Water spray, carbon dioxide, dry chemical powder, foam.
- Unsuitable extinguishing media
- Not specified
5.2 — Special hazards arising from the substance or mixture
- Special procedures
- May emit toxic fumes under fire conditions.
5.3 — Advice for firefighters
- Protection during firefighting
- Do not enter fire area without proper protective equipment, including respiratory protection.
6.1.1 — For non-emergency personnel
- Emergency procedures
- Contain spill, avoid dust generation, and ventilate area.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Collect and dispose of in accordance with local regulations.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Use only in a fume hood or well-ventilated area. Wear appropriate personal protective equipment.
- Hygiene measures
- Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.
7.2 — Conditions for safe storage, including any incompatibilities
- Storage conditions
- Store in a cool, dry place, away from light and moisture.
8.2 — Exposure controls
- Hand protection
- Protective gloves (e.g. nitrile rubber)
- Eye protection
- Chemical safety goggles or safety glasses
- Skin and body protection
- Wear suitable protective clothing
- Respiratory protection
- Use appropriate respiratory protection if dust is generated.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White to pale gray
- Odour
- Odourless
- Odour threshold
- Not applicable
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- greater than 572 °F
- Freezing point
- Not specified
- Boiling point
- Not specified
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Not specified
- Flammability (solid, gas)
- Not flammable
- Vapour pressure
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- Not specified
- Solubility
- 1 to 5 mg/mL at 74.3 °F
- Log Pow
- Not applicable
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidizing
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions, but may react with strong oxidizing agents.
10.2 — Chemical stability
- Chemical stability
- Stable under recommended storage conditions.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- No dangerous reactions known under normal conditions of use.
10.4 — Conditions to avoid
- Conditions to avoid
- Avoid contact with incompatible materials and excessive heat.
10.5 — Incompatible materials
- Incompatible materials
- Strong oxidizing agents, strong acids.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Toxic if inhaled, ingested, or absorbed through skin.
- Skin corrosion/irritation
- Not classified (based on available data)
- Serious eye damage/irritation
- Not classified (based on available data)
- Respiratory or skin sensitisation
- Not classified (based on available data)
- Germ cell mutagenicity
- Not classified (based on available data)
- Carcinogenicity
- H350: May cause cancer
- Specific target organ toxicity (single exposure)
- Not classified (based on available data)
- Specific target organ toxicity (repeated exposure)
- Not classified (based on available data)
12.1 — Toxicity
- Toxicity information
- Not specified
12.2 — Persistence - degradability
- Persistence - degradability
- Not specified
12.3 — Bioaccumulative potential
- Bioaccumulative potential
- Not specified
12.4 — Mobility in soil
- Mobility in soil
- Not specified
12.6 — Other adverse effects
- Environmental precautions
- Not specified
13.1 — Waste treatment methods
- Additional Info
- Dispose of contents/container in accordance with local, regional, national and international regulations.
14.1 — UN number
- UN-No. (ADR)
- 3077
- UN-No. (IMDG)
- 3077
- UN-No. (IATA)
- 3077
- UN-No. (ADN)
- 3077
- UN-No. (RID)
- 3077
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Environmentally hazardous substance, solid, n.o.s.
- Proper Shipping Name (IMDG)
- Environmentally hazardous substance, solid, n.o.s.
- Proper Shipping Name (IATA)
- Environmentally hazardous substance, solid, n.o.s.
- Proper Shipping Name (ADN)
- Environmentally hazardous substance, solid, n.o.s.
- Proper Shipping Name (RID)
- Environmentally hazardous substance, solid, n.o.s.
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 9
14.4 — Packing group
- Packing group (ADR)
- III
- Packing group (IMDG)
- III
- Packing group (IATA)
- III
- Packing group (ADN)
- III
- Packing group (RID)
- III
14.5 — Environmental hazards
- Dangerous for the environment
- Not specified
- Marine pollutant
- Not specified
- Other information
- No supplementary information available
15.1 — Safety, health and environmental regulations/legislation specific for the substance or mixture
- 15.1.1 EU-Regulations
- Not specified
Historically used as a dye intermediate and analytical reagent for blood/peroxidase detection; largely restricted due to severe carcinogenicity.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL00244
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 257.16 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | ≥99% | 99.5% |
| Moisture Content | ≤0.5% | 0.3% |
| Residue on Ignition | ≤0.1% | 0.05% |
| Related Substances | Not more than 0.5% | 0.2% |
The above product is expected to comply with AR grade grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| AR grade | ≥99% | m.p. greater than 572 °F | ≤0.5% | ≤0.1% | Not more than 0.5% | 1 to 5 mg/mL at 74.3 °F |
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